*{margin:0;padding:0;}
header{
		width:100%;
		background:#f5f5f6;
		text-align:center;
		color:gray;
		height:50px;
		line-height:50px;
		position:fixed;
		z-index:9999;
	}
.menu-h > li{
		width:100px;
		float:right;
		list-style:none;
		margin-right:50px;
		cursor:pointer;
	}
.menu-h li:hover ul{
		display:block;
	}
	
.menu-i > ul{
		display:none;
		background:white;
	}
	.y{
		float:left;
		color:#00c1de;

	}
	.menu-i > ul li{
		list-style:none;
		padding:10px;
		line-height:10px;
	}
	.menu-i > ul li:hover{
	  background:black;
	}
	body {
 background: #CCCCCC;
 }
 button{
 	 background:#00c1de;
 	color:white;
 	width:200px;
 }

